* options.h (class General_options): Add --print-output-format.

	* options.h (class General_options): Add --print-output-format.
	Move -EL next to -EB, for  better --help output.
	* target-select.cc: Include <cstdio>, "options.h", and
	"parameters.h".
	(Target_selector::do_target_bfd_name): New function.
	(print_output_format): New function.
	* target-select.h (class Target_selector): Update declarations.
	(Target_selector::target_bfd_name): New function.
	(print_output_format): Declare.
	* main.cc: Include "target-select.h".
	(main): Handle --print-output-format.
	* gold.cc: Include "target-select.h".
	(queue_initial_tasks): Handle --print-output-format when there are
	no input files.
	* parameters.cc (parameters_force_valid_target): Give a better
	error message if -EB/-EL does not match target.
	* freebsd.h (Target_selector_freebsd::do_target_bfd_name): New
	function.